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Convert salary to hourly, check overtime pay, and see your real annual income before taxes.
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Find your maintenance calories, set a safe deficit, and track body fat — no fad diet.
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Measure the space, then get exact paint, flooring and material quantities before you buy.
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Convert distances, project fuel cost, and pin down the dates before you leave.
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Measure the big three — diet, flights and plastic — then find where to cut.
Top calculators
Expiration Date Calculator
Expiration date calculator that turns a production date plus a shelf life (in days, weeks, months or years) into the exa…
Open #2 HealthCalories Burned Weight Lifting Calculator
Estimate calories burned during a weight-lifting session using MET-based formulas from the Ainsworth Compendium. Light, …
Open #3 ConvertKg to Liters Converter
Convert kilograms to liters and back for 12 common substances. 1 kg water = 1 L, 1 kg gasoline = 1.34 L, 1 kg honey = 0.…
Open #4 ConvertBar to PSIG Converter
Convert bar gauge pressure to PSIG (pounds per square inch, gauge). 1 bar = 14.5038 PSI, but gauge means relative to atm…
Open #5 Time & DateLunar Age Calculator
Lunar age calculator that converts a Gregorian birthdate to Chinese lunar age (虚岁) or East Asian nominal age. The Chines…
Open #6 HealthMcg to IU Converter (Vitamins A, D, E)
Micrograms to International Units converter. Each vitamin has its own factor: Vitamin D 1 mcg = 40 IU, Vitamin A 1 mcg R…
Open #7 ConvertMcg to mL Converter
Convert micrograms to milliliters based on solution concentration (mcg/mL). Mass and volume are different dimensions, so…
Open #8 ConvertLbs to PSI Calculator
Convert pounds-force to PSI. Pressure equals force divided by area, so 100 lbs spread over 2 in² is 50 PSI. The same 100…
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